Mr. Bao and his son: Only use Stankang for hair oil

Chapter 57 Hey!
Chen Jinhua sat on the rickshaw all the way, waving to the people on the street who couldn't even put on their autumn clothes. Looking at people's envious expressions, he stole the show and felt very happy in his heart.

Little did he know that this move made Gong Deming want to push him out of the car many times, but it was too disrespectful to do anything with someone like Chen Jinhua...

"I won't sit in the same car with you next time. It's so embarrassing."

Gong Deming put down these words and did not bother to say hello to Guo Chun and Bao Guowei. He walked angrily to the door of the school and disappeared into the crowd.

This made Chen Jinhua scratch his head: I don't know what made this person angry.

It was the end of the lunch break and it was about to start class. The students at the entrance of the school were holding books or candy in their hands, chatting and walking in. It was very lively.

Probably because Bao Guowei's hairstyle was very eye-catching after applying Si Dankang, many people raised their eyebrows: Could this be the new young gentleman?He looks a bit handsome.

The nearest road to Building No. [-] is from the west. Halfway there, Bao Guowei's original open space on the west side of the path was planted with the three friends of Suihan: "pine", "bamboo" and "plum".

A banner was also raised: Welcome winter and praise the three friends.

Winter is coming soon!
Is winter really coming?

"Bao Guowei! What are you doing with this thing? It's already [-]:[-], and class is about to begin."

Guo Chun saw that Bao Guowei was a little dazed, so he patted him on the shoulder and urged him to leave quickly.

"Let's go!"

In the strong autumn wind, bright red banners fluttered in the wind.

Chen Jinhua was left there alone. He couldn't come to his senses. He touched the beautiful and thick banner and looked at the worn cotton clothes on his body: they were a bit white, and there were oil stains on the clothes, forming small spots.

"Welcome winter and praise the three friends..."

……

At less than [-]:[-], there are still more than ten minutes before class, and the class is already full of people.

Most of the students in the new school are children of wealthy families, so they naturally have good communication skills. After getting along for a period of time, they can all chat easily. Therefore, when F3 in the back row by the window entered the class, it was already buzzing with people.

"Bao Guowei, can I ask you this question?"

An Shuzhen heard the sound of chairs scraping against the ground in the back, and knew that the three brothers in the back row had already taken their seats - naturally the classmate who was good at science was also there.

"What's the question? Just tell me."

An Shuzhen turned around, intending to show "General Catalog of Geometry" to Bao Guowei, but suddenly she saw that the man in front of her seemed much more pleasing to the eye than before?

"You're wearing makeup!"

After saying this, An Shuzhen gently covered her mouth. She really shouldn't have said these words.

"Si Dankang."

"what?"

"I applied Si Dankang, scalp oil Si Dankang. If you have any questions, please ask immediately."

Bao Guowei was a little helpless. Guo Chun had been asking this question along the way. It seemed that the effect of the hair oil was too good.

An Shuzhen was dubious when she heard Bao Guowei's explanation, but that's not important:

"sinA+sinB=2sin[(A+B)/2]cos[(AB)/2], how is this formula derived?"

Looking at the part that An Shuzhen was pointing at, Bao Guowei fell into deep thought. He felt that he was probably dreaming: "When did this thing start to be taught? Could it be that Mr. Shen came to the classroom to make up lessons for everyone during the lunch break?"

This is clearly the formula for the sum-difference product of trigonometric functions, but Bao Guowei didn't bother to delve into it. He took out a pencil and a piece of scratch paper:

"Do you know the sine formula of the sum and difference of two angles of a triangle function?"

"Know, sin(A±B)=sinAcosB±cosAsinB; cos(A±B)=cosAcosB±sinAsinB; tan(A±B)=tanA±tanB/1±tanAtanB."

After hearing An Shuzhen's answer, Bao Guowei confirmed that she had really learned this step, and wrote as he spoke:
"According to the formula you just mentioned, we can know: sin(A+B)=sinA*cosB+cosA*sinB, sin(AB)=sinA*cosB-cosA*sinB. We add the two formulas to get sin(A +B)+sin(AB)=2sinA*cosB, so, sinA*cosB=(sin (A+B)+sin (AB))/2" "And in the same way, according to..."

Start chanting!Western Scriptures!Guo Chun, who was next to him, covered his ears when he heard this, but couldn't help but look over. Seeing the letters on the paper increasing, his pupils could not help but shrink, and he was shocked. Is this something that humans can remember?

……

In the south of the city, Lao Zhang’s barber shop.

Lao Zhang has been distracted these days, and he is always absent-minded when giving haircuts.

The reason is that he found that his son Zhang Siwu has been disappearing for some time inexplicably in recent days, especially at night, often staying out all night, and often bringing some money to support the family.

According to Zhang Siwu, it is because the weather has been cold recently and there are fewer people working night shifts. People are afraid of getting sick from the cold, so wages are much higher than before, and they have to go out to work more to support their families.

Lao Zhang didn't believe it. With so many people coming to Suzhou to escape, where would there be a shortage of workers?Even if it's the work of going up the knife mountain and going down the frying pan, as long as we can make a few more big steamed buns, there will be someone to do it.

Besides, even if the salary is high, other people are afraid of getting sick, but my son will not get sick?It’s not like Lao Zhang has never discouraged him: Four or five, don’t hang out outside all the time.

Zhang Siwu always agreed verbally, but after a few days he still went his own way.

When did this thing start...

A customer, a thin man in his 50s or [-]s, entered the barber shop. He shook his pocket, made a sound of coins clinking, and sat directly on the hair-cutting chair.

The meaning is very clear: cut your head

This man's hair is really long, covering his eyes, and he looks a bit like an "old coal guy" on the street.

The so-called "Lao Meizi" refers specifically to men who abduct and traffic children. If they are women, they are called "Lao Manjizi".

Putting a scarf on the thin man, Lao Zhang picked up the scissors and cut his hair with a click.

The skill of hair cutting seems to be engraved in Lao Zhang's instinct, "thinning" and "hair thinning" are not a problem...

"Hiss! What did you do!"

The thin man gasped because when Lao Zhang was cutting his hair, the scissors hit his scalp.

"Hey! Sorry! I didn't pay attention! I didn't pay attention!"

Lao Zhang apologized quickly, saying he was a new customer, so he had to be polite.

"No, you have to pay!"

The thin man was reluctant, his eyes narrowed, a few wrinkles appeared between his eyebrows, and the folds from the tip of his nose to the bridge of his nose became numb, looking extremely angry.

He put his hand on his scalp and touched it, then put it under his eyelids to see: there was no blood, just mud under his fingernails.

The thin man was a little disappointed: If only these scissors could poke a small hole in his brain and bleed hard, he could get more money, and by chance, he could buy himself another short shirt.

Reluctantly, the thin man put his hand on his scalp again and touched it, plucking it quietly with his nails, trying to draw out some blood.

"Blood! Bleeding!"

Looking at the blood stains on the edges of his nails, the thin man screamed excitedly.

"You dug it out yourself, it has nothing to do with me! There are no marks on this scalp at all, don't act like this, your grandfather and I have eaten more salt than you have ever eaten rice!"

Lao Zhang knew that he had met a gangster. After doing business for so many years, he had seen all kinds of people.

"Bah!"

An angry shout came from outside the door.

(End of this chapter)